Oracle Linux 3 / 4 / 5 : krb5 (ELSA-2010-0423)

Medium Nessus Plugin ID 68041


The remote Oracle Linux host is missing one or more security updates.


From Red Hat Security Advisory 2010:0423 :

Updated krb5 packages that fix one security issue are now available for Red Hat Enterprise Linux 3, 4, and 5.

The Red Hat Security Response Team has rated this update as having important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

Kerberos is a network authentication system which allows clients and servers to authenticate to each other using symmetric encryption and a trusted third party, the Key Distribution Center (KDC).

A NULL pointer dereference flaw was discovered in the MIT Kerberos Generic Security Service Application Program Interface (GSS-API) library. A remote, authenticated attacker could use this flaw to crash any server application using the GSS-API authentication mechanism, by sending a specially crafted GSS-API token with a missing checksum field. (CVE-2010-1321)

Red Hat would like to thank the MIT Kerberos Team for responsibly reporting this issue. Upstream acknowledges Shawn Emery of Oracle as the original reporter.

All krb5 users should upgrade to these updated packages, which contain a backported patch to correct this issue. All running services using the MIT Kerberos libraries must be restarted for the update to take effect.


Update the affected krb5 packages.

See Also

Plugin Details

Severity: Medium

ID: 68041

File Name: oraclelinux_ELSA-2010-0423.nasl

Version: $Revision: 1.6 $

Type: local

Agent: unix

Published: 2013/07/12

Modified: 2016/05/06

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:krb5-devel, p-cpe:/a:oracle:linux:krb5-libs, p-cpe:/a:oracle:linux:krb5-server, p-cpe:/a:oracle:linux:krb5-workstation, cpe:/o:oracle:linux:3, cpe:/o:oracle:linux:4, cpe:/o:oracle:linux:5

Required KB Items: Host/local_checks_enabled, Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2010/05/18

Reference Information

CVE: CVE-2010-1321

BID: 40235

OSVDB: 64744

RHSA: 2010:0423